A sufficient criterion for the existence of an envelope of characteristics and a~cuspidal edge on the enveloping surface of a~parametrized family of surfaces
Izvestiâ vysših učebnyh zavedenij. Matematika, no. 3 (1977), pp. 20-23
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@article{IVM_1977_3_a2,
author = {V. A. Zalgaller and F. L. Litvin},
title = {A sufficient criterion for the existence of an envelope of characteristics and a~cuspidal edge on the enveloping surface of a~parametrized family of surfaces},
journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
pages = {20--23},
publisher = {mathdoc},
number = {3},
year = {1977},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/IVM_1977_3_a2/}
}
TY - JOUR AU - V. A. Zalgaller AU - F. L. Litvin TI - A sufficient criterion for the existence of an envelope of characteristics and a~cuspidal edge on the enveloping surface of a~parametrized family of surfaces JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1977 SP - 20 EP - 23 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1977_3_a2/ LA - ru ID - IVM_1977_3_a2 ER -
%0 Journal Article %A V. A. Zalgaller %A F. L. Litvin %T A sufficient criterion for the existence of an envelope of characteristics and a~cuspidal edge on the enveloping surface of a~parametrized family of surfaces %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1977 %P 20-23 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1977_3_a2/ %G ru %F IVM_1977_3_a2
V. A. Zalgaller; F. L. Litvin. A sufficient criterion for the existence of an envelope of characteristics and a~cuspidal edge on the enveloping surface of a~parametrized family of surfaces. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 3 (1977), pp. 20-23. http://geodesic.mathdoc.fr/item/IVM_1977_3_a2/